CN1507703A - Multi-band cellular service over CATV network - Google Patents
Multi-band cellular service over CATV network Download PDFInfo
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- CN1507703A CN1507703A CNA028092724A CN02809272A CN1507703A CN 1507703 A CN1507703 A CN 1507703A CN A028092724 A CNA028092724 A CN A028092724A CN 02809272 A CN02809272 A CN 02809272A CN 1507703 A CN1507703 A CN 1507703A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
- H04N7/104—Switchers or splitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
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Abstract
A CATV network is modified with a secondary transmission (CBP) by adding filters to separate modified mobile-communications frequencies. A CATV terminal can be routed to cellular network by way network coupling devices (NCD).
Description
The related application of cross reference
The application requires the right of the U.S. Provisional Application 60/287705 of submission on May 2 calendar year 2001, and this application all is cited in this as a reference.
Background of invention
Invention field
This specification relates to a kind of by using cable TV network, and the new system and the topological structure of cellular services is provided in multiband.This system uses same catv network, can adjust the interior coverage of building and total active volume of different cellular networks.These cellular networks have multiple radio interface (air interface), and different frequency bands is arranged, and may be operated simultaneously by different cellular service providers.The term of using herein " moves ", and " honeycomb " and " wireless " typically refers to wireless system and network, such as UMTS, and GSM900, GSM1800, PCS1900, TDMA800, CDMA800, CDMA2001X/3X or PDC.Other known type, and the type that may develop from now on, and should be realized that " moving ", " honeycomb " and " wireless " they are the terms that hope comprises the system of all these types.
Especially, this specification relates to a kind of expansion to traditional mobile wireless network, described expansion be utilize cable TV or HFC (Hybrid Fiber Coax cable) network (with similarly, after this be commonly referred to as catv network).More particularly, described a kind of method at this, this method merges catv network in mobile wireless network, to adjust Yu Yin ﹠amp; Data, services and coverage have increased the capacity of network simultaneously; And in a mobile wireless network,, be provided at the access in the building for any mobile radio terminal combination; On catv network, merge and the carrying mobile radiotelephone signal, and mutually and and the CATV business between do not produce interference.
Related work
Mobile wireless and cellular network operation basic theories are known.The feature of cellular radio is the Network Access Point that is distributed in diverse geographic location, and each access point has defined some sub-districts (cells) of network.The Network Access Point that is distributed in diverse geographic location is commonly called base station BS or basic sending and receiving stations BTS, and it comprises sending and receiving device, is used for to mobile radio terminal (MT) transmission signal and from the mobile radio terminal received signal.Here, a MT is not limited to a common cell phone, but any equipment that can carry out cellular communication.Only use authority is to the part of the frequency resource of network operator in each sub-district (or sector), as long as the interference between one sub-district, sub-district remains on an appropriate level, same capacity resource (frequency or coding) can use repeatedly in different sub-districts.This practice is called as the multiplexing coefficient of network (network reuse factor).Each sub-district can further be segmented, thereby has defined Microcell (microcells).Each such Microcell provides the honeycomb to a predefine (very little usually) zone to cover.Microcell is subjected to the restriction of their total active volumes usually.
The problem of a needs solution is: current frequency or code multiplexing technology (sectorization and cell area are divided again) can not solve " third dimension (third dimension) " problem.Cellular network can't solve the problem of user terminal when being higher than conventional height and position, such as the upper floor in very high office or resident's building.Require mobile service to cause cellular network operator in the city, to develop a kind of intensive (intensive) BTS network all sidedly.Like this on ground level, adjusted frequency efficiency (increase network capacity), yet made the problem on the skyscraper more serious, because architectural at these, MT can " see " several BTS of same frequency or coding.
Sub-district in the cellular radio is typically connected on the more high-rise entity, and these entities can be called as mobile switching centre (MSC), and they are to providing certain control and function of exchange with the BTS that is attached thereto.These MSC are connected with each other, and are connected on the public switched telephone network (PSTN), or they oneself possess such PSTN interface.
A traditional mobile wireless network has some important limitations.When working on the frequency that is being higher than 1GHz, must in traditional mobile radio communication network, set up countless base stations, cover so that necessary geography to be provided, and provide enough capacity for high-speed data applications.These base stations need a large amount of soils and are difficult to see.
The another one limitation is that because cell tower is very expensive and the occupation of land requirement is arranged, only including the limited number tower in one network is rational economically.Therefore, the size of sub-district may be quite big, therefore must equip the device of high-power emissivities to mobile radio terminal, makes wireless terminal can launch enough strong signal and receive for the geographical cell tower that disperses of going up.
When the honeycomb radius becomes big, the average effective data rate corresponding reduction of each user in most of packet based protocol, and high-speed data service may worsen.
Another limitation of the cellular radio of Shi Xianing is traditionally, and cellular antenna places outside the building usually, though this is to providing the cellular service in the building more beneficial.For the application in the building, the penetrability of cellular signal needs more high-power website, perhaps extra website or repeater (repeater) with overcome signal penetrate building intrinsic decay.Along with frequency increases, the corresponding minimizing of signal strength signal intensity in the building.Because antenna for base station is positioned at outside the building, mobile radio terminal is difficult to launch enough strong, can be effectively from the signal of indoor propagation outside building.Thereby, in building, use portable terminal will cause data transfer rate to descend, and consume a large amount of limited battery electric quantities.
The cellular radio of Shi Xianing also has another to limit to traditionally, the intrinsic capacity limit that the voice-and-data service is provided of each BTS.The deficiency of capacity comes from the mode of frequency resource allocation to each BTS.For rational voice-and-data quality is provided, each BTS can only use the part of the frequency resource that cellular system operators has.The same part of the frequency resource of this BTS of other BTS reusable, but must consider geographical distribution.In the technology based on CDMA, this is called as the code multiplexing coefficient, and in the technology based on TDMA, this is called as frequency reuse.
Because at present, the CATV ubiquity, even also like this in country, the limitation of attempting to utilize the CATV bandwidth to overcome above-mentioned cellular system has caused everybody concern.
Fig. 1 shows a cover CATV system, with the schematic form of highly simplifying.In this CATV system, the head end of CATV (head end) is connected in a CATV cable network.This CATV cable network comprises various device, such as amplifier.Current most of catv networks are two-way.That is to say that communicate by letter (uplink communication (upstream communications) just) from the head end of CATV to terminal use's communication (downlink communication (downstream communications) just) with head end from terminal use to CATV all is possible.
Catv network as shown in Figure 1 is a bilateral system.The amplifier of CATV also is two-way.Uplink communication is carried by a narrow relatively frequency band 5 to 45MHZ.Downlink communication is specifically decided by specific system by a wide relatively frequency band 50 to 750MHZ or 50 to 860MHZ carryings.
The communication downlink transfer arrives a set-top box (STB) from the CATV head end through a tree network.STB is connected on the television set.Certainly, also might television set comprising a suitable equipment is connected to cable and does not use STB.Similarly, also may have line modem or other relevant devices.For simplicity, with any this kind equipment of STB representative.
Fig. 2 has shown a kind of traditional, the method for the two-way cellular communication of carrying on such network.In the method, public land mobile communication network (PLMN) is connected to cable system by an interface I/F.Carry by the CATV amplifier from the downlink communication (downlinkcommunications) that PLMN comes, and catv network is carried by remote antenna driver (RAD).RAD bears descending communication signal and they is broadcast to a MT.
Ascender, CATV amplifier, I/F interface arrive PLMN afterwards from the next uplink communication process RAD of portable terminal, bandwidth.Nature, it is necessary doing frequency inverted at the RAD place, so that uplink communication (uplink communications) signal can be placed in the upstream bandwidth of catv network.
Existing method of carrying wireless signal in catv network comprises reorganization (re-arranging) or repacks (re-packaging) original wireless signal of telecommunication to be fit to existing CATV standard frequency (5-45MHz and 50-750/860MHz) and channel.This finishes by active element usually, and element upwards or is down changed wireless frequency and arrived the uplink and downlink frequency of standard C ATV to be fit to known standard C ATV frequency of operation.Yet, use standard C ATV channel to reduce the bandwidth that CATV operator can use, this bandwidth is used for providing image according to common CATV standard, data and sound, for example DOCSIS and DVB.
Yet said method all has disadvantage.Especially, if wish to reorganize and repack whole UMTS frequency band (1920-1980 MHZ, 2110-2170MHZ) in standard C ATV channel, can find that UMTS upstream bandwidth (60MHZ) is to the upstream bandwidth (40MHZ) of CATV and therefore Yan Taida can not carry.Even a less bandwidth is carried to the CATV upstream band, also will seriously reduce rare up CATV resource.The patent documentation of the disadvantageous method that some representatives are such is summarized as follows:
U.S. Pat 5802173 and 5809395 (relevant patent) number patent has been described a radio telephone system, and wherein cellular signal is carried on a catv network.Yet uplink cellular communication frequency is switched to " arriving the 30MHZ scope 5 ".This conversion is necessary, because catv network is divided into two frequency ranges usually: high band handles downlink transfer (head end is to hub to the user) and low-frequency range is handled uplink (user is to hub to head end).In other words, any upward signal or communication that surpasses 45MHZ is filtered by CATV oneself, and this is the part of the normal running of network.In ' 173 method ', whole uplink communication must be fit to low-frequency range (that is, " being allocated in the part that is used for the frequency spectrum of uplink communication in the CATV system ").
No. 5828946 patents of United States Patent (USP) have been described a kind of radio communication system based on CATV.In United States Patent (USP) 5828946, receive the interference that causes catv network for avoiding a plurality of outdoor honeycombs, only the signal that is received with enough power levels is converted and uplink.
United States Patent (USP) 5822678 points out that the frequency division characteristic of catv network is a problem.Especially, the limited available bandwidth " frequency band between 5 to 40MHZ " of this patent instruction has been drawn " using the problem of wired station transmission telephone signal ".Be head it off, this patent has proposed " redefining of the current frequency allocation method of cable TV ".That is, the division of height frequency range moves on to a hundreds of MHZ height from 40MHZ in the catv network.This method of too oversimplifying has very big disadvantage, because it requires to replace the large number quipments in arbitrary catv network.The method of such costliness is not also adopted by reality.
United States Patent (USP) 5638422 and document category above-mentioned seemingly instruct the uplink cellular communication to be carried on " CATV system return path (return path), that is, 5MHZ is implemented in the telephone service of Return-ing direction to 30MHZ ".In addition, the downlink cellular communication is disadvantageous in " forward direction frequency range (the forward spectrum), that is, 50MHz is to 550MHz " carrying.This disturbs the CATV signal, and is a problem to CATV operator, and CATV operator must move on to the planning (programming) of current existence other part of frequency range, so that vacate frequency range for the downlink cellular signal.
How United States Patent (USP) 6223021 instructions use remote antenna driver able to programme to increase the coverage of outdoor honeycomb.For example, peak period remote antenna in the morning forwards certain frequency set (frequency set) to, and peak period at night forwards the another one frequency set to.Therefore, outdoor communication can increase neatly.Remote antenna driver and their antenna are suspended on the outdoor CATV cable.This patent is not described the limited upstream bandwidth problem that how to solve the uplink cellular communication.
United States Patent (USP) 6192216 has described how to use one from the remote antenna position, determine via the gain tone that catv network transmits, to the signal of each remote antenna place emission suitable intensity.
United States Patent (USP) 6122529 has been described the scope that increases a cellular coverage that has existed with outdoor remote antenna and remote antenna driver, but only to those outdoor cellular antennas can not cover regional useful.The given BTS signal of delivering to the cellular antenna tower sends to overcome " blind " district simultaneously through remote antenna.
United States Patent (USP) 5953670 has also described how to use the remote antenna driver, has also adopted the method that sends the uplink cellular communication in the CATV low-frequency range above-mentioned.
Summary of the invention
Thereby a purpose of invention is, overcomes the above-mentioned limitation of present mobile wireless network, and the disadvantage of the above-mentioned relevant trial that standard mobile wireless network and catv network are integrated.
According to an aspect of system, for traditional mobile wireless network provides an expansion, wherein the CAVT network can transmit the two-way mobile wireless business of multiband.According to system on the other hand, provide a kind of catv network, it can handle transport service in the predetermined multiband configuration from the multiple mobile radio system of different providers, does not reduce CATV or cellular system service quality simultaneously.
In order to reach above purpose with other, this catv network promptly, is propagated radiating portion at RF as the access element work of a mobile radio system.According to system described herein, existing catv network performance is kept fully, and mobile radio terminal need not to adjust.That is to say that the signal according to wireless communication protocol sends passes through catv network, and when arriving portable terminal, is the primary standard frequency that the base station produces just in the untapped frequency more than the frequency of CATV planning.
The wireless frequency of mobile wireless network and catv network and channel architecture are also inequality.Catv network is adjusted with the RF signal that allows mobile wireless network and propagates, and frequency is switched to a frequency band that is higher than CATV planning, to propagate in the CATV system.
Such frequency band is not used by CATV operator, but can be used to carry the cellular system signal of mixing by the CATV infrastructure of suitably upgrading.Thereby target provides the system that can transmit a more than cellular system (being the multi-band cellular service) simultaneously.
Traditional catv network is the two-way network, and has by cable, amplifier, signal shunt/mixer (splitters/combiners) and filter and form the topological structure that tree and branch is done.According to an aspect of system, cable and other passive component such as signal shunt/mixer do not make an amendment, and active element can be modified.Thereby system is that a CATV system comprises new element, to allow to cover a multiband, many standards, intercommunication system.Adjusted element allows network to remove to carry two kinds of unlike signals (CATV upstream and downstream signal and cellular system upstream and downstream signal) in mode (not having to cause the cross-couplings of unacceptable interference) fully independently simultaneously.
Notice that the cable (optical fiber and coaxial cable) that is used for catv network is not strict to the restriction of bandwidth, this is very important.The bandwidth of actual catv network is that signal loading limit and the bandwidth by the relay amplifier of reality limited.Now, catv network uses filter the frequency spectrum on the cable to be divided into two frequency ranges---one of them is used for uplink communication, and one is used for downlink communication.By increasing duplexer and filter so that further frequency band division to be provided, it allows additional amplifier to handle the cellular network business of uplink and downlink.
According to the another one aspect of native system, it provides an element, and this element is as to any hybrid cellular signal transmission antenna and frequency converter, and as a CATV I/O unit of catv network.This element also can be provided in the decay of the control in the downlink.The picture signal of most of existing CATV has been limited in 750MHz following (some catv network can up to 860MHz), so be switched to this more than restriction point by standardized cellular signal.Because this fact, dissimilar signal (CATV and cellular system) can coexist in same CATV cable.
Thereby catv network is adjusted by a mode that allows the CATV transmission to remain on original form and assigned frequency.Linear element can be only used in adjustment to catv network self, as filter and amplifier, finishes.These adjustment are simple, firm with afford to spend.
The present invention sets forth by such method below, promptly also comes in conjunction with the accompanying drawings to explain in detail by multiple concrete exemplary embodiment.Yet, should confirm that the present invention is more wider than the example that describes below, and example is just in order to set forth invention in currently preferred embodiments.Additional claim will be described actual range of the present invention.
The accompanying drawing simple declaration
Accompanying drawing with very schematic formal description the embodiment of the reflection principle of the invention.Manyly be omitted, in order to avoid make the present invention fuzzy being familiar with clauses and subclauses and details that this area person is readily appreciated that.In the drawings:
Fig. 1 illustrates a traditional catv network.
Fig. 2 illustrates the existing example that carries the method for cellular signal at catv network.
Fig. 3 illustrates the upgrading honeycomb cable network according to one embodiment of the present of invention.
Fig. 4 illustrates the honeycomb shunting device according to one embodiment of the present of invention.
Fig. 5 illustrates the coupling device and the cellular antenna that is fixed on the cable according to one embodiment of the present of invention.
Fig. 6 illustrates the honeycomb input module according to the dual-band systems of one embodiment of the present of invention.
Fig. 7 illustrates a kind of frequency allocation plan of double frequency-band cellular system.
Fig. 8 illustrates the frequency allocation plan of other a kind of double frequency-band cellular system.
Fig. 9 illustrates the frequency converter (up/down transducer, or UDC) of the double frequency-band cellular system that uses the frequency among Fig. 7 or Fig. 8.
Figure 10 illustrates the honeycomb input module (entrance module) according to three band systems of one embodiment of the present of invention.
Figure 11 illustrates a kind of frequency allocation plan of three band cellular system
Figure 12 illustrates a kind of frequency converter of three frequency cellular systems.
Figure 13 illustrates the honeycomb input module according to six band systems of one embodiment of the present of invention.
Figure 14 illustrates a kind of frequency allocation plan of six band cellular system.
Figure 15 illustrates a kind of frequency converter of six band cellular system.
DETAILED DESCRIPTION OF THE PREFERRED
Use various exemplary embodiments to set forth the present invention now.Though embodiment is carefully described, should confirm that the present invention is not limited to these embodiment, and have significantly bigger scope.Should determine true scope of the present invention with reference to additional claim.
Fig. 3 illustrates one and has realized CATV part of having mixed the system of wireless and CATV of the present invention.In Fig. 3, wireless uplink and downlink frequency are not transformed in the bandwidth commonly used of CATV.On the contrary, the frequency of uplink and downlink is transformed into the part that is higher than CATV planning bandwidth.That is to say that radio communication all is carried on, for example more than the 860MHz.
The CATV amplifier is usually only to the 5MHz-45MHz frequency band conducting of uplink communication, and filters other up frequency.The CATV amplifier usually only to downlink communication 50MHz to the conducting of 750/860MHz frequency band, transmit descending frequency and filter other.This has caused the problem of the frequency band carrying cellular communication on traditional CATV planning frequency band.
For addressing this problem, the honeycomb bypass apparatus be installed in each have source point or element (such as the CATV amplifier, trunk amplifier (trunk amplifier), circuit extensor (lineextender), distribution module (distribution module), and analog).CBP comprises a honeycomb amplifier and bypass equipment (BPD).Thereby CBP transmits uplink around the CATV amplifier and communicates by letter with downlink, thereby cellular communication is not filtered by the CATV amplifier.
At each end user location, network coupled equipment (NCD) is provided and has been fixed on cellular antenna (CMCA) on the cable.Exchange the CATV business between NCD and the STB (if do not use STB, television set or other assembly), and exchange cellular services with CMCA.Terminal user position also can be seen as the indoor terminal point of catv network.
Business from head end is by a honeycomb input module (CEEM, as described below) and from PLMM A and the next mix of traffic of PLMM B.PLMM A and PLMM B are dissimilar systems, such as GSM800 and UMTS.The business of coming from these two different systems can be seen as multiband business or multi-band cellular communication.The business that " multiband " herein refers to come from a more than system (though these systems also can be envisioned as same type, such as from an operator's UMTS with from another operator's UMTS).
Fig. 4 illustrates the more details of honeycomb bypass apparatus (CBP) diagrammatic sketch.Each bypass equipment BPD comprises that transmission CATV business (5 to 750/860MHz) arrives the filter of CATV amplifier and transmits the filter of cellular services to the honeycomb amplifier.The uplink of honeycomb and downlink business at the honeycomb frequency of routine, are not lower than conventional transmission frequency but be displaced to another one, but are higher than in the frequency band of CATV plan frequency.As shown in Figure 4, uplink after the frequency displacement and downlink business are exaggerated, and add in the cable again at another one bypass equipment BPD then.
CBP also can be regarded as cellular transmission module (CETM), because it transmits cellular signal by catv network.CETM is installed in catv network arbitrarily on the active element, walks around trunk amplifier, circuit extensor and distribution module.Thereby the CETM among Fig. 4 is the two-way amplifier repeater, and it amplifies uplink and downlink cellular signal after the frequency displacement.It also amplifies the carrier wave (as described below) of LO (local oscillator).The cellular signal of each place that the CATV amplifier is installed after to frequency displacement done two-way amplification at catv network, because the CATV amplifier of existing standard can not be handled uplink and downlink signal after the frequency displacement.The CETM repeater should have enough linearities, to prevent the distortion of cellular signal.In all directions, its gain changes in the 75MHz frequency band not quite.CETM can obtain energy from catv network, can only reach efficient with very little power supply like this.
According to a certain embodiments,, also CETM can be installed even without active element such as CATV amplifier.That is, CETM can be used for the environment that only has cellular signal to be exaggerated.
Fig. 5 illustrates network coupled equipment NCD and the cellular antenna CMCA that is fixed on the cable.NCD is delivered to set-top box STB with CATV business (for example 860MHz and following) simply, and cellular services (for example, being higher than 860MHz) is delivered to CMCA.When CATV and cellular signal one time-out, can regard a mixed signal as.
CMCA comprise a transducer UDC who makes progress downward with honeycomb frequency from the frequency inverted after the frequency displacement to conventional frequency, this routine frequency is according to specific criteria or be used for the standard of radio communication.Similarly, UDC also obtains honeycomb frequency, and after being translated into frequency displacement frequency in cable, to transmit.UDC also can be regarded as frequency converter more simply.
Especially, CMCA bears downlink communication, and their forms after the frequency displacement that is received from wired system is converted into the not frequency of displacement of its routine.And it bears uplink communication and with the frequency of its frequency inverted that is not shifted from routine after the frequency displacement, in order to be transferred to suitable substance P LMM along wired system.
Transducer UDC and antenna are coupled to together up and down, with on conventional honeycomb frequency with communication of mobile terminal.
UDC may comprise a more than frequency converter module, and can have several.
Fig. 6 illustrates a honeycomb input module (CEEM) 110.BTS60 from a cellular system A and the BTS that comes from another cellular system B are connected on the CEEM.In this example, system A is a GSM800 system, and the B of system is a UMTS system.System A and B can be from same or different providers.
Fig. 7 illustrates these two systems and how to be received into simultaneously in the bandwidth of CATV system.
As an example, Fig. 7 shows UMTS (representative system B) and the frequency of GSMl800 (representative system A) before and after frequency inverted.That is to say that GSM1800 (system A) frequency is converted, thereby the uplink business has occupied the part of uplink signal (uplink is above figure) of the frequency displacement of A indication.This GSM1800 system (A) is also by frequency inverted, thereby the downlink business has occupied the part of the downlink signal (downlink is above figure) after the frequency displacement of A indication.
Similarly, exemplary view has shown how the signal of the B of UMTS system does frequency inverted to the uplink signal and the downlink signal of frequency displacement, and this signaling bearer is in the CATV system not on the frequency of usefulness.Among the figure sign " R " show it is the sub-band of a reservation, it can in be used for any special purpose.Each part of uplink and downlink frequency band thereby can be seen as sub-band.
Fig. 8 shows an optional frequency shift method, shown to have a lot of possible these facts of variation in the present invention, and method described here is very flexible.Particularly, in Fig. 8, the cellular downlink link signal after the frequency displacement is carried on scope, such as 960 among 1035MHz; Honeycomb uplink signal after the frequency displacement is carried on scope, such as 1080 among 1155MHz.
Uplink and downlink frequency band position can change to adapt to the hobby of local CATV operator, provide enough intervals between cellular signal after the frequency displacement and CATV signal, and provide enough intervals between uplink and the downlink signal after to frequency displacement.
The width of uplink and downlink frequency band also can change, and the width of sub-band also can change and unnecessary identical on width.
Get back to Fig. 6, the BTS60 of the A of GSM1800 system is connected to a up/down frequency converter 210, this frequency converter is transformed into frequency after the predetermined displacement with downlink GSM1800 signal from the cellular format of its former beginning and end frequency displacement according to predetermined frequency shift method and plan (as in method as shown in Fig. 7 and Fig. 8 and plan) on.The downlink signal thereby the frequency displacement that come from the A of system are the A of system reserve part to the downlink frequency band.
The BTS60 of the B of UMTS system is connected on the frequency converter 210, and this frequency converter converts the cellular format of downlink signal from original not frequency displacement according to the form after the preset frequency plan frequency displacement to.Downlink signal that comes from the B of system thereby frequency displacement are the part of the B of system reservation to the downlink frequency band.
Similarly, the honeycomb uplink signal after the frequency converter 210 conversion frequency displacements, form (that is, in GSM1800 or UMTS frequency) from the form after the frequency displacement (that is the frequency that in special system, keeps) to their routines for the uplink frequency band.
What should confirm is, CEEM receives original cellular signal from a large amount of base stations, and to change original cellular signal be the form after the frequency displacement in the sub-band, and this conversion is carried out according to preset frequency displacement plan, and CEEM also sends downlink signal after the frequency displacement to the CATV system.Similarly, CEEM receives cellular signal after the frequency displacement from CATV, and the cellular format after the conversion frequency displacement is unprocessed form, and this conversion is carried out according to the predetermined frequency shift plan, thereby exports original cellular signal and arrive each self-corresponding base station.
The base station participates in (being the GSM1800 system of representative system A and the UMTS system of representative system B) in each different cellular system, thereby may each sub-band be different service providers and/or different system bearer service.
By use different local oscillators in each UDC210 of CEEM, each uplink or downlink sub-band can be by independent translation.Be simple meter, (guard band) is not shown for the guard band between each sub-band.Yet,, can produce by the frequency that local oscillator is set if between sub-band, need protection frequency band.
Sub-band produces outside the primary standard Frequency Distribution of mobile radio system.The sub-band bandwidth that is converted is had more than the example that is limited to herein.Mobile radio system operator may use up his all bandwidth and transmit in this system.
Fig. 9 shows and is used for according to Fig. 6, the frequency converter UDC of the CMCA of 7,8 systems.Especially, UDC is being applicable to following situation: wired system is held GSM carrier and UMTS operator simultaneously.Cellular signal after the frequency displacement is communicated by letter with a splitter (divider) (being used for the downlink signal) by a synthesizer (combiner) (being used for the uplink signal), shown in the figure middle and upper part.
The downlink signal converts intermediate frequency (using local oscillator F1/F5) to by known way, is that GSM and UMTS are transformed into conventional frequency (using F3/F7) then.These signals are sent to antenna element ANT.
Similarly, the uplink signal is received from antenna element ANT, and is transformed into intermediate frequency by known way (use F4/F8), and conversion then (using F2/F6) is to the honeycomb frequency of frequency displacement and mix so that be carried on the catv network.
Because the CMCA in this example handles two kinds of different systems, it can be seen as the dual-band module (CMDBM) that is fixed on the cable.And because the business of CMCA processing 3G type in this example, it also can be counted as being fixed on the third generation module (CMTGM) on the cable.Though explanation all will be used more generally term CMCA in the whole text, above-mentioned two kinds of descriptions also all are suitable, because be important goal from the transmission of the signal of the system of arbitrary number and arbitrary wireless mode.
As understanding, need accurate local oscillator (LO) from top institute.The frequency of local oscillator can be at CEEM place drawing-in system, and along propagated to CMCA.Such LO frequency also can be used as pilot tone.CMCA can change honeycomb uplink and downlink link signal with this LO signal and become their original standard frequencies, or converts honeycomb uplink and downlink link signal to from their original standard frequencies.Can get rid of in CMCA requirement to the frequency source of accurate costliness along the Network Transmission local oscillator frequencies to CMCA.This can reduce complexity and the cost of user's CMCA.Certainly, the method for transmitting the LO frequency like this is preferred and nonessential, and accurate local oscillator also can provide in CMCA.
Perhaps, some service provider wishes that some client to them only provides the service of single frequency band.The single band module can be connected to same by the catv network module coexistence after the multiband upgrading with other double frequency-band or three frequency bands (or more).At home or other place of office, in the same house, a CATV delivery outlet single band module, and at a different CATV delivery outlet dual-band module.
Fig. 9 shows a UDC device that is used for CMCA, but is familiar with the people of this area for those, and using a similar substantially device is very tangible as the UDC among the CEEM as shown in Figure 6, but uplink and downlink path will be in suitable directions.
Fig. 9 illustrates the frequency converter UDC (thereby two frequency converter modules are arranged) that is used to handle two systems, and same method can be used to handle the system of arbitrary number.Similarly, though intermediate frequency conversion when only supporting a system, also can carry out.
The example of one three system is provided now.
Among Figure 10, system A and B are with the example of front, and additional now system C is increased into.System C is the GSM900 system.Thereby the CEEM110 among Figure 10 has the 3rd frequency converter 210 and is connected to the BTS of the C of system.Downlink signal from GSM900 is shifted by this frequency converter according to frequency plan shown in Figure 11.
Show the uplink and the downlink frequency band of the original not frequency displacement of the various cellular communication systems of considering here in Figure 11 bottom.On top, Figure 11 illustrates cellular signal with the uplink and the downlink frequency band that are converted.Top at figure has shown the finer figure of uplink and downlink frequency band, comprises sub-band.
Figure 11 is similar to Fig. 7 a little, and is very similar to Fig. 8, except a sub-frequency bands is the C of system special use.The arrangement of descending cellular signal is carried on and is lower than the frequency that the ascending honeycomb signal uses after the frequency displacement after the frequency displacement, the downlink frequency band 960 and 1035MHZ between, and the uplink frequency band 1080 and 1155MHZ between.
Figure 12 illustrates the CMCA that is applicable in this example, that is, CMCA has a UDC that three different UDC modules are arranged, and wherein each is used for different cellular systems.Specifically, the UDC modules A is the transducer of GSM1800 signal, and UDC module B is the transducer of UMTS cellular signal, and UDC module C is the transducer of GSM900 cellular signal.The uplink cellular signal of the not frequency displacement that each module converts is original is to suitable sub-band, and is perhaps opposite.
An example will be provided now, and wherein six different base stations are connected on the CEEM.
Among Figure 13, six different cellular systems have been shown.System A and B are the GSM1800 systems.System C is the GSM900 system, and system D is the UMTS system to F.Any all has a BTS60 to be connected to CEM110 in six systems.Each all is connected to UDC210 separately.Each UDC210 of each BTS presses the planning execution frequency inverted of Figure 14, and Figure 14 has shown that how keeping different sub-bands gives each system.Figure 15 illustrates a CMCA who is fit in this example.CMCA has a UDC who possesses six UDC modules.Each module of six UDC is responsible for frequency inverted, and frequency inverted is carried out between the form after at former beginning and end frequency displacement form with according to the frequency displacement of showing as Figure 14.Should be realized that six systems may be provided by identical or different provider, the perhaps associating of provider.
Being familiar with this area person can understand, equipment described herein and method have been formed a kind of method that promotes the second generation and third generation cellular network throughput.Indoor cellular inserts by the honeycomb catv network, thereby indoor mobile unit transmitted power can be very low.This and occur in the building intrinsic attenuation together, make indoor cellular that the better data, services possibility that becomes be arranged.
The different embodiment and the various aspects of system described herein help to overcome the coverage of the original description that current cellular mobile radio network operator faced and the restriction of capacity.By reducing the restriction of these coverages, provide the cost of good wireless coverage to reduce, and service level has improved.The CATV system operator will have potential new revenue source.New service program is possible in the place of CATV and mobile radio terminal service mixing.
Though used some concrete examples for explanation in the superincumbent description of this invention, should be realized that, the scope that these examples and the figure that comprises are not meant to limit the present invention, this scope should decide based on additional claim.Be familiar with this area person and can find or make some little modifications and variations, and do not leave spirit and scope of the invention.
Claims (26)
1. one kind provides multiband double-direction radio RF the method for cellular communication by catv network, comprising:
One at catv network has source point that a shunting device is provided;
Between the indoor terminal point of a catv network access point and a catv network, transmit the wireless RF cellular signal and the CATV signal of frequency displacement, wherein the CATV signal transmits by source point is arranged, and the wireless RF cellular signal of frequency displacement transmits by shunting device;
Wherein the wireless RF cellular signal of frequency displacement comprises the multiband business.
2. the method for claim 1 further comprises at the indoor terminal point of catv network:
Receive the downlink wireless RF cellular signal of frequency displacement from catv network;
The downlink wireless RF cellular signal of frequency displacement is converted to the downlink wireless RF cellular signal of original frequency;
The downlink wireless RF cellular signal of original frequency is outputed to an antenna;
Receive the uplink wireless RF signal of original frequency from antenna;
With the uplink wireless RF conversion of signals of original frequency uplink wireless RF signal to frequency displacement;
The uplink wireless RF signal of frequency displacement is outputed to catv network.
3. method as claimed in claim 2 further comprises at the indoor terminal point of catv network, between described catv network and at least one CATV device by coaxial cable communication CATV signal.
4. method as claimed in claim 3, wherein at least one described CATV device is one or more TV, a cover set-top box and a cable modem.
5. method as claimed in claim 2 further is included in and transmits original frequency wireless RF signal on the public radio interface of cellular network;
6. method as claimed in claim 5, the frequency of the uplink wireless RF signal of wherein said frequency displacement is on 905MHz.
7. method as claimed in claim 5, the frequency of the downlink wireless RF signal of wherein said frequency displacement is on 905MHz.
8. method as claimed in claim 5, wherein the wireless RF signal of original frequency is frequency shifted to than in the high frequency band of CATV frequency.
9. method as claimed in claim 8, frequency band wherein are 945-1120MHz;
10. method as claimed in claim 8, frequency band wherein are 960-1155MHz;
11., further comprise at the access point of catv network as the method for claim 1-10 described in each:
Receive the uplink wireless RF cellular signal of frequency displacement from catv network;
The uplink wireless RF cellular signal of frequency displacement is transformed into the uplink wireless RF cellular signal of original frequency;
The uplink wireless RF cellular signal of original frequency is outputed to a BTS;
Receive the downlink wireless RF signal of original frequency from BTS;
The downlink wireless RF cellular signal of original frequency is transformed into the downlink wireless RF signal of frequency displacement; And
The downlink wireless RF signal of frequency displacement is outputed to catv network.
12. method as claimed in claim 11, wherein said shunting device is carried out the following step:
Receive the wireless RF cellular signal of CATV signal and shift frequency, as coupled signal;
Differencing between the wireless RF cellular signal of the CATV signal in the signal of coupling and the frequency displacement of coupling;
With the CATV signal in the signal of coupling by the active element in the catv network;
Only pass through around the active element of RF signal in catv network with the frequency displacement in the signal of coupling;
By after the step, mix the wireless RF signal of this CATV signal and frequency displacement and think that communicating by letter on the further catv network provides signal.
13. method as claimed in claim 11 further comprises:
At the access point of catv network, inject one or more pilot tone continuous waves (CW) frequency and be used for and the communicating by letter of indoor terminal point; And
And carry out the conversion of reverse frequency with described one or more pilot tone continuous waves (CW) frequency at indoor terminal point, with the downlink RF cellular signal of conversion frequency displacement and change original frequency uplink RF signal.
14. method as claimed in claim 13, shunting device is wherein only amplifying one or more pilot tone CW frequencies from access point to indoor terminal point direction.
The system of the two-way cellular services of multiband 15. communicate by letter simultaneously on a cable TV (CATV) network comprises:
Honeycomb input module (CEEM) at an access point of catv network, it receives original downlink signal, comprise from the original downlink signal of a plurality of base station transceivers station (BTS) reception, and with the frequency band of original downlink signal frequency shift to the frequency of the TV signal that is higher than catv network, so that the cellular signal of frequency displacement to be provided, at least the first downlink signal that comprises the frequency displacement of a BTS, and the second downlink signal of the frequency displacement of the 2nd BTS, this CEEM has a frequency converter to think that each BTS conversion provides the predetermined sub-band that arrives described frequency band according to the frequency inverted of predetermined frequency plan;
A cellular antenna (CMCA) that is fixed on the cable at the indoor terminal point of catv network, it is suitable for receiving original uplink signal, comprise original first uplink signal and the second original uplink signal, and with the frequency band of original uplink signal frequency shift to the TV signal that is higher than catv network, so that the cellular signal of frequency displacement to be provided, comprise first uplink signal of frequency displacement and the second uplink signal of frequency displacement; And
A cellular transmission module (CETM), it is on an active element of catv network, and the cellular signal of this frequency displacement is transmitting between CEEM and CMCA on the catv network by CETM.
16. system as claimed in claim 15, wherein said a plurality of BTS comprise at least three BTS.
17. system as claimed in claim 16, wherein said a plurality of BTS comprise the BTS of a GSM1800 system, the BTS of a UMTS system, and the BTS of a GSM900 system.
18. system as claimed in claim 15, the frequency band that wherein is higher than the TV signal of catv network is 945 to 1120MHz frequency band.
19. system as claimed in claim 15, the frequency band that wherein is higher than the TV signal of catv network is 960 to 1155MHz frequency band.
20. system as claimed in claim 15, wherein CEEM carries out the following step:
Receive downlink CATV signal from catv network;
The original first downlink signal of frequency displacement with the original second downlink signal of the first downlink signal that frequency displacement is provided and frequency displacement so that the second downlink signal of frequency displacement to be provided;
The first downlink signal of coupling downlink CATV signal, frequency displacement and the second downlink signal are to provide the downlink signal of a coupling;
Transmit the downlink signal of coupling by catv network;
Receive the uplink signal of a coupling from catv network;
The uplink signal of the described coupling of decoupling zero is to provide the cellular signal of uplink CATV signal and frequency displacement;
Corresponding to the first uplink signal of the described frequency displacement of frequency shift of the first original uplink signal so that the first uplink CATV signal of recovery to be provided, and corresponding to the second uplink signal of the described frequency displacement of frequency shift of the original second uplink signal so that the second uplink CATV signal of recovery to be provided;
Transmit uplink CATV signal to catv network;
First uplink signal that transmission recovers and the second uplink signal of recovery are to cellular network.
21. system as claimed in claim 20, wherein CMCA carries out the following step:
Receive uplink CATV signal;
On a bilateral antenna, receive original first uplink signal and the original second uplink signal;
The original first uplink signal of frequency displacement is providing the first uplink signal of described frequency displacement, and the original second uplink signal of frequency displacement is to provide the second uplink signal of frequency displacement;
Be coupled the second uplink signal of the first uplink signal of described uplink CATV signal, described frequency displacement and described frequency displacement so that the uplink signal of a coupling to be provided;
Transmit the uplink signal of described coupling by catv network;
Receive the downlink signal of described coupling from catv network;
The downlink signal of the described coupling of decoupling zero is with the first downlink signal that downlink CATV signal, described frequency displacement are provided and the second downlink signal of described frequency displacement;
Corresponding to the first downlink signal of the described frequency displacement of frequency shift of the described original first downlink signal so that the first downlink signal of recovery to be provided, and corresponding to the second uplink signal of the described frequency displacement of the described original second downlink signal frequency frequency displacement so that the second downlink signal of recovery to be provided;
Transmit described downlink CATV signal to a TV-signal receiver;
First downlink signal of the described recovery of emission and the second downlink signal of recovery on described bilateral antenna;
22. system as claimed in claim 20 further comprises:
Inject the downlink signal of one or more pilot tone continuous waves (CW) frequency at CEEM to described coupling; And
Use described one or more pilot tone continuous waves (CW) frequency to carry out reverse frequency inverted at CMCA, with the frequency displacement of the frequency displacement of the first and second downlink signals of carrying out described frequency displacement and the original first and second uplink signals;
23. system as claimed in claim 21, wherein CETM carries out the following step:
As a coupled signal, receive in the downlink signal of the uplink signal of described coupling and described coupling;
Difference between first and second signals of the frequency displacement of the CATV of coupled signal signal and described coupled signal;
Transmit the CATV signal of described coupled signal by the active element of described catv network;
Around the active element of described catv network, transmit first and second signals of the frequency displacement of described coupled signal;
After transmission step, with first and second signals reorganization of the frequency displacement of the CATV signal of described coupled signal and described coupled signal, with the signal that provides on described catv network, to transmit.
24. system as claimed in claim 23 further comprises:
Inject the downlink signal of one or more pilot tone continuous waves (CW) frequency at CEEM to described coupling; And
Use described one or more pilot tone continuous waves (CW) frequency to carry out reverse frequency inverted at CMCA, with the frequency displacement of the frequency displacement of the first and second downlink signals of carrying out described frequency displacement and the original first and second uplink signals;
25. the device of the two-way cellular communication of multiband on the indoor terminal point that is used to be supported in catv network, it comprises:
The first frequency transducer, it is used for
The original frequency uplink wireless RF signal of first cellular system that will receive from antenna is converted to the uplink wireless RF signal of corresponding first frequency displacement, and
The first downlink wireless RF signal of the frequency displacement that will receive from catv network is converted to the original frequency downlink wireless RF signal of first cellular system; And
The second frequency transducer, it is used for
The original frequency uplink wireless RF signal of second cellular system that will receive from antenna is converted to the uplink wireless RF signal of corresponding second frequency displacement, and
The second downlink wireless RF signal of the frequency displacement that will receive from catv network is converted to the original frequency downlink wireless RF signal of second cellular system;
The wireless RF signal of wherein said frequency displacement has the sub-band frequency according to a predetermined frequency plan respectively.
26. device as claimed in claim 25 further comprises one the 3rd frequency, is used for:
The original frequency uplink wireless RF signal of the 3rd cellular system that will receive from antenna is converted to the uplink wireless RF signal of corresponding the 3rd frequency displacement, and
The downlink wireless RF signal of the 3rd frequency displacement that will receive from catv network is converted to the wireless RF signal of the original frequency downlink of the 3rd cellular system.
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| EP (1) | EP1384333B1 (en) |
| JP (1) | JP2004527965A (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547775A (en) * | 2012-02-29 | 2012-07-04 | 福建邮科通信技术有限公司 | System and method for simultaneous indoor covering of multiple types of communication signals by utilizing CATV (community antenna television) cable |
Families Citing this family (64)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040166833A1 (en) * | 2001-03-02 | 2004-08-26 | Dan Shklarsky | Mobile radio service over catv network |
| JP3996578B2 (en) * | 2002-01-30 | 2007-10-24 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Method and system for transmitting a carrier signal between first and second antenna networks |
| US7970368B2 (en) * | 2002-02-07 | 2011-06-28 | Qualcomm Incorporated | Wired cellular telephone system |
| EP1347643A1 (en) * | 2002-03-21 | 2003-09-24 | Alcatel | System for distribution of television programmes and for carrying out communication services |
| US20050048968A1 (en) * | 2003-08-28 | 2005-03-03 | Martin Haueis | Wireless communication system with a supplemental communication sub-system |
| WO2005072356A2 (en) * | 2004-01-26 | 2005-08-11 | Passover, Inc. | Wlan services over catv using csma/ca |
| WO2005089125A2 (en) | 2004-03-05 | 2005-09-29 | Interdigital Technology Corporation | Full duplex communication system using disjoint spectral blocks |
| IL161869A (en) | 2004-05-06 | 2014-05-28 | Serconet Ltd | System and method for carrying a wireless based signal over wiring |
| US20060248566A1 (en) * | 2004-12-14 | 2006-11-02 | Tibor Urbanek | Amplifier for use with voice over internet protocol signal |
| KR100900268B1 (en) * | 2004-12-23 | 2009-05-29 | 심한식 | In buiding RF repeater system |
| US7386308B2 (en) * | 2005-01-05 | 2008-06-10 | Ernest Mann | In-building radio frequency communications system with automatic failover recovery |
| JP4663399B2 (en) * | 2005-05-19 | 2011-04-06 | 株式会社ブロードネットマックス | CATV system |
| US7606529B1 (en) * | 2005-12-14 | 2009-10-20 | Sprint Communications Company L.P. | Wireless-signal distribution system via set-top box |
| US7813451B2 (en) | 2006-01-11 | 2010-10-12 | Mobileaccess Networks Ltd. | Apparatus and method for frequency shifting of a wireless signal and systems using frequency shifting |
| KR100835321B1 (en) * | 2006-12-11 | 2008-06-04 | 고남옥 | System for offering mobile telecommunication service using internet network with utp cable |
| US8873585B2 (en) | 2006-12-19 | 2014-10-28 | Corning Optical Communications Wireless Ltd | Distributed antenna system for MIMO technologies |
| US20080175175A1 (en) | 2007-01-18 | 2008-07-24 | Yair Oren | Hybrid Passive Active Broadband Antenna for a Distributed Antenna System |
| WO2008103374A2 (en) | 2007-02-19 | 2008-08-28 | Mobile Access Networks Ltd. | Method and system for improving uplink performance |
| EP2203799A4 (en) | 2007-10-22 | 2017-05-17 | Mobileaccess Networks Ltd. | Communication system using low bandwidth wires |
| US8195224B2 (en) | 2008-05-13 | 2012-06-05 | Corning Mobileaccess Ltd | Multiple data services over a distributed antenna system |
| US8175649B2 (en) * | 2008-06-20 | 2012-05-08 | Corning Mobileaccess Ltd | Method and system for real time control of an active antenna over a distributed antenna system |
| US8111959B2 (en) | 2008-07-30 | 2012-02-07 | Corning Mobileaccess Ltd | Method and system for coupling multimode optical fiber to an optical detector |
| EP2159933B1 (en) * | 2008-08-28 | 2013-03-27 | Alcatel Lucent | Levelling amplifiers in a distributed antenna system |
| US9673904B2 (en) | 2009-02-03 | 2017-06-06 | Corning Optical Communications LLC | Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof |
| JP2012517190A (en) | 2009-02-03 | 2012-07-26 | コーニング ケーブル システムズ リミテッド ライアビリティ カンパニー | Fiber optic based distributed antenna system, components and related methods for monitoring and configuration thereof |
| WO2010091004A1 (en) | 2009-02-03 | 2010-08-12 | Corning Cable Systems Llc | Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof |
| EP2399141A4 (en) | 2009-02-08 | 2012-08-01 | Corning Mobileaccess Ltd | Communication system using cables carrying ethernet signals |
| KR100920122B1 (en) * | 2009-03-19 | 2009-10-05 | 에스케이브로드밴드주식회사 | Repeater method for mobile communicationservice using hfc network and system thereby |
| US8280259B2 (en) | 2009-11-13 | 2012-10-02 | Corning Cable Systems Llc | Radio-over-fiber (RoF) system for protocol-independent wired and/or wireless communication |
| WO2011066426A1 (en) | 2009-11-25 | 2011-06-03 | Mobileaccess Networks Ltd. | Method and system for integrating an rf module into a digital network access point |
| US8275265B2 (en) | 2010-02-15 | 2012-09-25 | Corning Cable Systems Llc | Dynamic cell bonding (DCB) for radio-over-fiber (RoF)-based networks and communication systems and related methods |
| US9252874B2 (en) | 2010-10-13 | 2016-02-02 | Ccs Technology, Inc | Power management for remote antenna units in distributed antenna systems |
| WO2012148938A1 (en) | 2011-04-29 | 2012-11-01 | Corning Cable Systems Llc | Determining propagation delay of communications in distributed antenna systems, and related components, systems and methods |
| EP2702780A4 (en) | 2011-04-29 | 2014-11-12 | Corning Cable Sys Llc | Systems, methods, and devices for increasing radio frequency (rf) power in distributed antenna systems |
| US8787223B2 (en) | 2011-09-16 | 2014-07-22 | Rogers Communications Inc. | Coaxial cable distribution of CATV and wireless signals |
| WO2013142662A2 (en) | 2012-03-23 | 2013-09-26 | Corning Mobile Access Ltd. | Radio-frequency integrated circuit (rfic) chip(s) for providing distributed antenna system functionalities, and related components, systems, and methods |
| WO2013148986A1 (en) | 2012-03-30 | 2013-10-03 | Corning Cable Systems Llc | Reducing location-dependent interference in distributed antenna systems operating in multiple-input, multiple-output (mimo) configuration, and related components, systems, and methods |
| WO2013162988A1 (en) | 2012-04-25 | 2013-10-31 | Corning Cable Systems Llc | Distributed antenna system architectures |
| EP2883416A1 (en) | 2012-08-07 | 2015-06-17 | Corning Optical Communications Wireless Ltd. | Distribution of time-division multiplexed (tdm) management services in a distributed antenna system, and related components, systems, and methods |
| US9455784B2 (en) | 2012-10-31 | 2016-09-27 | Corning Optical Communications Wireless Ltd | Deployable wireless infrastructures and methods of deploying wireless infrastructures |
| CN105308876B (en) | 2012-11-29 | 2018-06-22 | 康宁光电通信有限责任公司 | Remote unit antennas in distributing antenna system combines |
| US9647758B2 (en) | 2012-11-30 | 2017-05-09 | Corning Optical Communications Wireless Ltd | Cabling connectivity monitoring and verification |
| EP3008828B1 (en) | 2013-06-12 | 2017-08-09 | Corning Optical Communications Wireless Ltd. | Time-division duplexing (tdd) in distributed communications systems, including distributed antenna systems (dass) |
| CN105452951B (en) | 2013-06-12 | 2018-10-19 | 康宁光电通信无线公司 | Voltage type optical directional coupler |
| US9247543B2 (en) | 2013-07-23 | 2016-01-26 | Corning Optical Communications Wireless Ltd | Monitoring non-supported wireless spectrum within coverage areas of distributed antenna systems (DASs) |
| US9661781B2 (en) | 2013-07-31 | 2017-05-23 | Corning Optical Communications Wireless Ltd | Remote units for distributed communication systems and related installation methods and apparatuses |
| US9385810B2 (en) | 2013-09-30 | 2016-07-05 | Corning Optical Communications Wireless Ltd | Connection mapping in distributed communication systems |
| US9178635B2 (en) | 2014-01-03 | 2015-11-03 | Corning Optical Communications Wireless Ltd | Separation of communication signal sub-bands in distributed antenna systems (DASs) to reduce interference |
| US9775123B2 (en) | 2014-03-28 | 2017-09-26 | Corning Optical Communications Wireless Ltd. | Individualized gain control of uplink paths in remote units in a distributed antenna system (DAS) based on individual remote unit contribution to combined uplink power |
| US9357551B2 (en) | 2014-05-30 | 2016-05-31 | Corning Optical Communications Wireless Ltd | Systems and methods for simultaneous sampling of serial digital data streams from multiple analog-to-digital converters (ADCS), including in distributed antenna systems |
| US9525472B2 (en) | 2014-07-30 | 2016-12-20 | Corning Incorporated | Reducing location-dependent destructive interference in distributed antenna systems (DASS) operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods |
| US9730228B2 (en) | 2014-08-29 | 2017-08-08 | Corning Optical Communications Wireless Ltd | Individualized gain control of remote uplink band paths in a remote unit in a distributed antenna system (DAS), based on combined uplink power level in the remote unit |
| US9602210B2 (en) | 2014-09-24 | 2017-03-21 | Corning Optical Communications Wireless Ltd | Flexible head-end chassis supporting automatic identification and interconnection of radio interface modules and optical interface modules in an optical fiber-based distributed antenna system (DAS) |
| US9420542B2 (en) | 2014-09-25 | 2016-08-16 | Corning Optical Communications Wireless Ltd | System-wide uplink band gain control in a distributed antenna system (DAS), based on per band gain control of remote uplink paths in remote units |
| US9184960B1 (en) | 2014-09-25 | 2015-11-10 | Corning Optical Communications Wireless Ltd | Frequency shifting a communications signal(s) in a multi-frequency distributed antenna system (DAS) to avoid or reduce frequency interference |
| US9729267B2 (en) | 2014-12-11 | 2017-08-08 | Corning Optical Communications Wireless Ltd | Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting |
| US20160249365A1 (en) | 2015-02-19 | 2016-08-25 | Corning Optical Communications Wireless Ltd. | Offsetting unwanted downlink interference signals in an uplink path in a distributed antenna system (das) |
| US9681313B2 (en) | 2015-04-15 | 2017-06-13 | Corning Optical Communications Wireless Ltd | Optimizing remote antenna unit performance using an alternative data channel |
| US9948349B2 (en) | 2015-07-17 | 2018-04-17 | Corning Optical Communications Wireless Ltd | IOT automation and data collection system |
| DE102015011875A1 (en) | 2015-09-10 | 2017-03-16 | Kathrein-Werke Kg | Device for transmitting and receiving mobile radio signals by means of a stationary antenna |
| US10560214B2 (en) | 2015-09-28 | 2020-02-11 | Corning Optical Communications LLC | Downlink and uplink communication path switching in a time-division duplex (TDD) distributed antenna system (DAS) |
| US10236924B2 (en) | 2016-03-31 | 2019-03-19 | Corning Optical Communications Wireless Ltd | Reducing out-of-channel noise in a wireless distribution system (WDS) |
| US10797753B2 (en) * | 2017-04-12 | 2020-10-06 | Cable Television Laboratories, Inc. | Systems and methods for LTE ingress characterize using PNM metrics |
| KR102022342B1 (en) * | 2018-01-11 | 2019-09-18 | (주)에이디알에프코리아 | BTS apparatus for Licensed-assisted access |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5809395A (en) | 1991-01-15 | 1998-09-15 | Rogers Cable Systems Limited | Remote antenna driver for a radio telephony system |
| US5638422A (en) * | 1992-01-15 | 1997-06-10 | General Instrument Corp. | Distributed antenna personal communication networks system |
| US5425027A (en) * | 1993-01-04 | 1995-06-13 | Com21, Inc. | Wide area fiber and TV cable fast packet cell network |
| US5488413A (en) * | 1994-06-14 | 1996-01-30 | Xel Communications, Inc. | CATV telephony system using subsplit band for both directions of transmission |
| US5642155A (en) * | 1994-09-14 | 1997-06-24 | Cheng; Alexander L. | Method and apparatus for supporting two-way telecommunications on CATV networks |
| US5812951A (en) * | 1994-11-23 | 1998-09-22 | Hughes Electronics Corporation | Wireless personal communication system |
| GB9508901D0 (en) * | 1995-05-02 | 1995-06-21 | Northern Telecom Ltd | Communications system |
| DE69638226D1 (en) | 1995-06-22 | 2010-09-16 | Scientific Atlanta | COMMON FIBER / COAX TRANSMISSION SYSTEM |
| US6128470A (en) * | 1996-07-18 | 2000-10-03 | Ericsson Inc. | System and method for reducing cumulative noise in a distributed antenna network |
| US5822678A (en) * | 1996-08-29 | 1998-10-13 | Ericsson, Inc. | CATV network for transport of radio frequency signals |
| US5974302A (en) * | 1997-03-24 | 1999-10-26 | Lucent Technologies Inc. | Dual band cellular/PCS transceiver |
| US6349200B1 (en) * | 1997-12-24 | 2002-02-19 | Transcept, Inc. | Monitoring and command system for transceivers used to inter-connect wireless telephones to a broadband network |
| JP2000232403A (en) * | 1999-02-08 | 2000-08-22 | Maspro Denkoh Corp | Cable broadcasting system, head end device and indoor device |
| EP2364056B1 (en) * | 2000-03-27 | 2012-11-07 | LGC Wireless, LLC | A radio frequency signal distribution system |
| ES2656351T3 (en) * | 2000-12-14 | 2018-02-26 | Counterpath Corporation | Method of re-selecting mobile phone between a cellular circuit switching network and a packet switching network |
| IL160390A0 (en) * | 2001-08-24 | 2004-07-25 | Passover Inc | Cable tv network frequency range extension with passive bypass device |
-
2002
- 2002-05-01 US US10/476,412 patent/US7403742B2/en not_active Expired - Fee Related
- 2002-05-01 CN CNA028092724A patent/CN1507703A/en active Pending
- 2002-05-01 DE DE60229930T patent/DE60229930D1/en not_active Expired - Lifetime
- 2002-05-01 EP EP02769269A patent/EP1384333B1/en not_active Expired - Lifetime
- 2002-05-01 IL IL15852002A patent/IL158520A0/en unknown
- 2002-05-01 WO PCT/US2002/011867 patent/WO2002091618A1/en active Application Filing
- 2002-05-01 BR BR0209354-5A patent/BR0209354A/en not_active Application Discontinuation
- 2002-05-01 AT AT02769269T patent/ATE415017T1/en active
- 2002-05-01 DK DK02769269T patent/DK1384333T3/en active
- 2002-05-01 ES ES02769269T patent/ES2318043T3/en not_active Expired - Lifetime
- 2002-05-01 KR KR10-2003-7014226A patent/KR20030096343A/en not_active Application Discontinuation
- 2002-05-01 JP JP2002587963A patent/JP2004527965A/en active Pending
- 2002-05-01 PT PT02769269T patent/PT1384333E/en unknown
- 2002-05-01 CA CA2445442A patent/CA2445442C/en not_active Expired - Fee Related
-
2008
- 2008-06-23 US US12/144,275 patent/US20080263609A1/en not_active Abandoned
-
2009
- 2009-02-18 CY CY20091100182T patent/CY1108810T1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547775A (en) * | 2012-02-29 | 2012-07-04 | 福建邮科通信技术有限公司 | System and method for simultaneous indoor covering of multiple types of communication signals by utilizing CATV (community antenna television) cable |
| CN102547775B (en) * | 2012-02-29 | 2015-01-07 | 中邮科通信技术股份有限公司 | System and method for simultaneous indoor covering of multiple types of communication signals by utilizing CATV (community antenna television) cable |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1384333A1 (en) | 2004-01-28 |
| DE60229930D1 (en) | 2009-01-02 |
| EP1384333A4 (en) | 2007-09-26 |
| CA2445442A1 (en) | 2002-11-14 |
| CA2445442C (en) | 2013-01-22 |
| US7403742B2 (en) | 2008-07-22 |
| US20080263609A1 (en) | 2008-10-23 |
| BR0209354A (en) | 2004-06-08 |
| KR20030096343A (en) | 2003-12-24 |
| PT1384333E (en) | 2009-02-20 |
| CY1108810T1 (en) | 2014-04-09 |
| DK1384333T3 (en) | 2009-03-09 |
| US20050176458A1 (en) | 2005-08-11 |
| ATE415017T1 (en) | 2008-12-15 |
| IL158520A0 (en) | 2004-05-12 |
| ES2318043T3 (en) | 2009-05-01 |
| EP1384333B1 (en) | 2008-11-19 |
| WO2002091618A1 (en) | 2002-11-14 |
| JP2004527965A (en) | 2004-09-09 |
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